Background: Ectopic pregnancy is the implantation of fertilized ovum on any tissue other than the endometrial lining of the uterus.
Objective: To evaluate the effectiveness and safeness of methotrexate in the treatment of unruptured ectopic pregnancy.
Materials And Methods: From January 2000 to October 2002 five patients were diagnosed with unruptured ectopic pregnancy in Hospital Juarez de Mexico.